Simultaneous Two primary cancers : Colon and Breast

I am a single / widow, 78 years of age, based at Mumbai, India.

Have been physically fit all my life - no medical problems till two months ago (except a left TKR in 2008).

Suddenly, my world is falling apart.

Diagnosed with stage 3 colon cancer in last week of August 2013. surgery was conducted on 26th August, resection was successful.

On 24th Sep, a day before starting my Chemo, a PET scan showed additional cancers, and subsequent biospy confirmed a second primary (Breast stage 3) and seconadry meta in the liver (from Colon).

Will appreciate any advise, what next?